A couple of years ago, a professor at my university had a very interesting thought exchange with the class I was in. We were a small group, and I knew most of them, they were my friends. Anyway, we had a talk about language purism - not an unimportant subject if you study English in The Netherlands.

As far as I’m aware, there’s no legal precidant to protect the current form of any language, except perhaps for the school curriculum, but then you hardly get people up in court for crimes against language.

AFAIK there are language laws in France. Seems they are not allowed to use English expressions in their ads if there are equivalent French ones.

A bit ironic coming from a country where French was hardly spoken by anybody until the industrial revolution and subsequent patronage by Napoleon. The whole idea of the typical 'Frenchman' started with him.